IL-1 consists of two distinct forms, IL-1 alpha and IL-1 beta which perform the same functions but are distinct proteins. IL-1 alpha is a pleiotropic cytokine involved in various immune responses, inflammatory processes, and hematopoiesis. This cytokine is also temporarily upregulated during bone formation and the menstrual cycle and can be induced in response to nervous system stimulation. Recombinant IL-1a protein was expressed in E. coli and purified by using conventional chromatography techniques. Alternative Names: fatty acid binding protein 4 adipocyte protein, IL-1 alpha protein, Fatty acid binding protein 4 protein, ALBP protein, aP2, FABP 4, adipocyte protein, Hematopoietin-1 protein, Fatty acid-binding protein protein, FABP-4, FABP 4 protein, FABP-4 protein, FABP4 protein, A-FABP protein, FABP4